NAICS 327999: All Other Miscellaneous Nonmetallic Mineral Product Manufacturing
This U.S. industry comprises establishments primarily engaged in manufacturing nonmetallic mineral products (except pottery, ceramics, and plumbing fixtures; clay building materials and refractories; glass and glass products; cement; ready-mix concrete; concrete products; lime; gypsum products; abrasive products; cut stone and stone products; ground and treated minerals and earth; and mineral wool).

Illustrative Examples:

Dry mix concrete manufacturing
Mica products manufacturing
Manmade and engineered proppants (e.g., resin-coated sand, ceramic materials) manufacturing
Stucco and stucco products manufacturing
Synthetic stones, for gem stones and industrial use, manufacturing 

ExioML sector: Other non-metallic mineral products
Region: US | Year: 2022
Sector value added: 7267.28241345 M EUR | Employment: 50.0959097238 thousand persons
Sector GHG emissions: 3814794224.23 kg CO2 eq | Energy carrier net total: 91162.3046969 TJ | Carbon intensity: 0.5249272021092409

Company: Unifrax Holding Co
Unifrax Holding Co. operates as a holding company. The Company, through its subsidiaries, manufactures ceramic fiber insulation products used in high temperature industrial applications. Unifrax Holding serves various industries worldwide.